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-   -   Fluent graphics problem (http://www.cfd-online.com/Forums/fluent/42427-fluent-graphics-problem.html)

smalawi September 30, 2006 07:15

Fluent graphics problem
 
I keep getting errors when trying to plot grids or simulation resultsin fluwnt 6.2. aprearantly some hoops driver have problems. i tried uninstalling fluent (6.2) and reinstalling it several times but the problem still remains. All other fluent functions are running fine!

I have win xp home running on my laptop PC.

the error massages vary here are and example:

Error: Floating point error: divide by zero

Error Object: ()

How to fix this?

Ralf Schmidt September 30, 2006 15:52

Re: Fluent graphics problem
 
Hi!

For the floating point error in general, check:

http://www.cfd-online.com/Wiki/Fluen..._I_avoid_it.3F

BUT, there is nothing, that has to do with graphics, so sorry... I don't know further...

It might be, that your solution is not ok. So if you tell Fluent to plot values, that are not defined (eg. divided by 0) it might return the floating point error...

Ralf

smalawi October 1, 2006 06:36

Re: Fluent graphics problem
 
Thanks for the hent, but the file and solution are both correct. They are from old runs and work with other PC's.

I'm sure its the graphic driver, it actually show that at times, and the best solution as I were told is to fromat the laptop. Not the easest solution!

Ralf Schmidt October 1, 2006 06:55

Re: Fluent graphics problem
 
Hi,

I had a problem with the grapics driver with unix. the solution was, to start fluent with that command:

fluent 3d -driver x11 &

I don't think, you can do that with xp, but there is maybe something similar.

Ralf

Allan Walsh October 2, 2006 12:08

Re: Fluent graphics problem
 
Are you using the default graphics driver? For Windows, the msw driver is more general and is sometimes needed. Fluent can be started in Windows with other drivers using the -driver msw (or something similar) command.

Riaan October 4, 2006 20:09

Re: Fluent graphics problem
 
I see this often as well.

Try the -driver msw command whne you load Fluent.

Rashad October 5, 2006 03:46

Re: Fluent graphics problem
 
May be this problem is due to low memory of graphic card as i solve this problem by updating my graphic card. Check it

lucero October 11, 2006 17:45

Re: Fluent graphics problem
 
I have the same problem, but I don`t know how to start Fluent 6.1 with "driver msw command" in WindowsNT. Could anyone tell me how to do that, please??? I'm desesperated

tuw October 17, 2006 09:01

Re: Fluent graphics problem
 
Hi,

I have similar problem too. But i think i finally get to solve it after many times of trial and error.

I am using window XP SP2, Pentium 4 1.6GHz, 640mb RAM. Due to unsatisfied performance of my default graphic card (64mb 4x), i have change the graphic card to ATI Radeon 9550 128mb. The VGA card is great but my CPU tend to unable to cope with the changes.

When i optimized the acceleration of my graphic card fully, my fluent cant show the proper display of grid (not to mention any display of contour), problems like the "floating error" and "divided by zero" occur. But when i reduce the acceleration by 50%(or more), the display of fluent become normal.

You can try this--- reduce the acceleration of your graphic card. Hope this work. :)

tuw

materioscura June 8, 2009 22:14

Quote:

Originally Posted by tuw
;136347
Hi,

I have similar problem too. But i think i finally get to solve it after many times of trial and error.

I am using window XP SP2, Pentium 4 1.6GHz, 640mb RAM. Due to unsatisfied performance of my default graphic card (64mb 4x), i have change the graphic card to ATI Radeon 9550 128mb. The VGA card is great but my CPU tend to unable to cope with the changes.

When i optimized the acceleration of my graphic card fully, my fluent cant show the proper display of grid (not to mention any display of contour), problems like the "floating error" and "divided by zero" occur. But when i reduce the acceleration by 50%(or more), the display of fluent become normal.

You can try this--- reduce the acceleration of your graphic card. Hope this work. :)

tuw

Heyyyy man, I have tried your answer and I had got success with it!!!
Thanks for you help. Bye.


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